Generalization to Local Remappings of the Visuomotor Coordinate Transformation

During visually guided movement, visual representations of target location must be transformed into coordinates appropriate for movement. To investigate the representation and plasticity of the visuomotor coordinate transformation, we examined the changes in pointing behavior after local visuomotor remappings. The visual feedback of finger position was limited to one or two locations in the workspace, at which a discrepancy was introduced between the actual and visually perceived finger position. These remappings induced changes in pointing, which were largest near the locus of remapping and decreased away from it. This pattern of spatial generalization highly constrains models of the computation of the visuomotor transformation in the CNS. A simple model, in which the transformation is computed via the population activity of a set of units with large sensory receptive fields, is shown to capture the observed pattern.

• Publication year

  1996

• Venue

  Journal of Neuroscience

• Publication date

  1996-11-01

• Fields of study

  Medicine, Computer Science, Psychology

• Identifiers
  DOI 10.1523/JNEUROSCI.16-21-07085.1996PMID 8824344PMCID PMC6579263
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar, PubMed

• No claims are published for this paper.

• No concepts are published for this paper.

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